Polymer Processing Aid PPA9028 PPA 9028 is free flow; 25-mesh white powder fluoropolymer based processing aid. At a very low level addition(50-800ppm), it can improve PE processing without affect the original physical property of the plastics as well as sealing, adhesion and printing, can be used for mLLDPE, LLDPE, HDPE, LDPE, EVA and other polyolefin resin.Product Form:White or off-white powderApplication: